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PS Audio Stellar Pre/Power Combo

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Availability: In stock

Regular Price: NZ$5,498.00

Special Price NZ$4,999.00

Quick Overview

The combination of the PS Audio Stellar Gain Cell preamplifier with built in DAC, and the Stellar S300 stereo power amplifier (a dual mono power amplifier) is capable of effortlessly driving demanding loudspeaker loads to concert levels. The perfect choice for just about any loudspeaker, the Stellar combo is a stunning piece of audio craftsmanship, surprising and delighting even the most discriminating Audiophile.

PS Audio Stellar Pre/Power Combo

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Regular Price: NZ$5,498.00

Special Price NZ$4,999.00

Details

Rated at 140 Watts per channel into 8Ω and 300 Watts per channel into 4Ω, the S300 combines the best of two worlds: ultra linear, high-current, Class D technology for the output stage; a discrete, Class A MOSFET based Analog Cell for the all-important input stage. The S300’s rich, warm, and engaging sonic character comes from the Analog Cell. Its powerful, authoritative control over the loudspeaker stems from its high current, ultra-low impedance Class D output stage.

Stellar’s design imperative was to produce a truly musical sounding power amplifier that proudly competed with any amplifier under $5,000.  Its designer, PS Audio engineer Darren Myers, took the challenge and set to work on a new concept—a hybrid that would combine the best of today’s technology with time-honored techniques leveraging PS Audio’s forty plus years of experience.

The results are extraordinarily musical. Even from the earliest prototype we knew the Stellar power amplifier series was going to be something special. Stellar amplifiers never draw attention to themselves, a rare quality in amplifiers of any price. After hundreds of hours of tuning, voicing, and perfectionist tweaking, we were confident the ends justified the means.

The Analog Cell makes all the difference

The connection between preamplifier and power amplifier is critical, for it is at this junction where most essential musical details are easily lost. Nothing in the design of a power amplifier is more important than its input stage when preserving music’s finest nuances. In the S300 a unique topology called the Analog Cell has been employed to preserve the rich details found in music.

The Analog Cell is a zero feedback, balanced, Class A, MOSFET input stage. The design closely mirrors the sonic characteristics of a vacuum tube and allows Myers the freedom to voice the amplifier as he sees fit. Long hours of listening and tuning sessions in Music Room One, shared by PS Audio founder Paul McGowan and Darren Myers, resulted in a sonic signature that honors the music and never draws attention to itself.

The listening experience with the S300 starts feet tapping and smiles breaking out. The S300 presents music without a hint of glare. Listeners are constantly surprised at the width and depth of the S300’s soundstage; its preservation of the smallest details in reverb, room acoustics, musical overtones; its commanding presence without intrusion; it’s delicate handling of subtle shadings; its authority as it grabs hold of the loudspeaker and breezes through even the most complex musical passages.

All power amplification stages have strengths and weakness. Class D output stages are no different. Their strengths are many: near-perfect linearity, low distortion, high efficiency. Areas where they do not excel, are most notable in high-frequency extremes. Because Class D amplifiers require an output filter to remove their switching noise, they do not have frequency extremes into the many hundreds of thousands of Hertz. Depending on their design modern Class D amplifiers, like the type used in Stellar, extend high frequencies to about 50kHz. Human hearing limitations are 20kHz, though most listeners rarely have hearing exceeding half that.

The Stellar S300 provides excellent frequency extremes, low distortion, high efficiency, high damping factor, and a powerful output of 300 Watts per channel into the most common loudspeaker loads of 4Ω. Plenty of horsepower for even the most demanding loudspeakers.

So, just how good are Class D Amplifiers? Paul McGowan answers this question below

Additional Information

Output Power (RMS) 8Ω 140W minimum 4Ω 300W minimum 2Ω Stable for musical transients (Both channels driven 120vac mains, 1kHz, 1% THD)
Dimensions (mm) 432 x 305 x 76
Weight (kg) 5.9

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